{"id":4336,"date":"2019-01-18T18:05:56","date_gmt":"2019-01-19T02:05:56","guid":{"rendered":""},"modified":"2025-06-04T12:05:31","modified_gmt":"2025-06-04T19:05:31","slug":"4336","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/4336","title":{"rendered":"Why won&#8217;t my Go Direct sensor turn on even when connected to USB?"},"content":{"rendered":"<h3 class=\"wp-block-heading\">This article applies for the following sensors:<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/go-direct-motion-detector\/\">Go Direct<sup>&reg;<\/sup> Motion Detector<\/a> (<nobr>GDX-MD<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-photogate\/\">Go Direct<sup>&reg;<\/sup> Photogate<\/a> (<nobr>GDX-VPG<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-sound-sensor\/\">Go Direct<sup>&reg;<\/sup> Sound Sensor<\/a> (<nobr>GDX-SND<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-static-charge\/\">Go Direct<sup>&reg;<\/sup> Static Charge<\/a> (<nobr>GDX-Q<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-sensor-cart\/\">Go Direct<sup>&reg;<\/sup> Sensor Cart<\/a> (<nobr>GDX-CART-G<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-sensor-cart\/\">Go Direct<sup>&reg;<\/sup> Sensor Cart<\/a> (<nobr>GDX-CART-Y<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-co2-gas-sensor\/\">Go Direct<sup>&reg;<\/sup> CO<sub>2<\/sub> Gas Sensor<\/a> (<nobr>GDX-CO2<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-optical-dissolved-oxygen-probe\/\">Go Direct<sup>&reg;<\/sup> Optical Dissolved Oxygen Probe<\/a> (<nobr>GDX-ODO<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-respiration-belt\/\">Go Direct<sup>&reg;<\/sup> Respiration Belt<\/a> (<nobr>GDX-RB<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-rotary-motion-sensor\/\">Go Direct<sup>&reg;<\/sup> Rotary Motion Sensor<\/a> (<nobr>GDX-RMS<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-energy-sensor\/\">Go Direct<sup>&reg;<\/sup> Energy Sensor<\/a> (<nobr>GDX-NRG<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-weather-system\/\">Go Direct<sup>&reg;<\/sup> Weather System<\/a> (<nobr>GDX-WTHR<\/nobr>)<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p>If you press the power button and the Bluetooth LED does not flash red, there likely is a battery problem. Here is what you should try.<\/p>\n<ol class=\"wp-block-list\">\n<li>Connect the sensor to a known-to-work USB power source as you would to charge the sensor.<br \/>\u26ac If the Bluetooth LED start flashing red, let the battery charge for a couple of hours and try again.<br \/>\u26ac If the charging LED immediately goes green, but the sensor still won&#8217;t turn on, continue to step 2.<\/li>\n<li>Check to see if the battery is fully connected. Open the unit, disconnect then reconnect the battery.<br \/>\u26ac If the unit turns on, test the power button to make sure the sensor works as expected.<br \/>\u26ac If the unit still does not turn on, continue to step 3.<\/li>\n<li>Swap the battery with a working unit to see if the problem follows the battery or stays with the unit.<br \/>\u26ac If the problem stays with the sensor, the battery is probably not the issue, requiring repair.<br \/>\u26ac If the problem follows the battery, the battery has likely reached its end of life.<\/li>\n<li>See <a href=\"\/til\/4014\/\">How do I remove or replace a Go Direct battery?<\/a> for more information.<\/li>\n<\/ol>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p class=\"has-text-align-center has-very-light-gray-background-color has-background\"><span style=\"font-weight: 400;\"><strong>Rechargeable batteries are covered by a one-year warranty.<\/strong><\/span><br \/>Batteries <span style=\"font-weight: 400;\">should last two to five years in typical use. <\/span><\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<style>.wp-block-kadence-advancedheading.kt-adv-heading_f83f48-49, .wp-block-kadence-advancedheading.kt-adv-heading_f83f48-49[data-kb-block=\"kb-adv-heading_f83f48-49\"]{text-align:center;font-weight:normal;font-style:normal;color:#007377;}.wp-block-kadence-advancedheading.kt-adv-heading_f83f48-49 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_f83f48-49[data-kb-block=\"kb-adv-heading_f83f48-49\"] 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a&#8230;<\/p>\n","protected":false},"author":43901,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[6528,2943,7227],"class_list":["post-4336","post","type-post","status-publish","format-standard","hentry","tag-gdx","tag-power-button","tag-red-blink-flash"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/4336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/43901"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=4336"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/4336\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=4336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=4336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=4336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}